The temperature dependence of the acute toxicity of copper to a freshwater pond snail,Viviparus bengalensis L. |
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Authors: | P K Gupta B S Khangarot V S Durve |
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Institution: | (1) Dept. of Limnology and Fisheries, University of Udaipur, Udaipur, 313001, India;(2) Postgraduate Department of Zoology, Bhupal Nobles' College, Udaipur, 313001, India |
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Abstract: | Static bioassays with copper (as CuSO4 · 5H2O) were conducted in laboratory with a freshwater pond snailViviparus bengalensis, at different environmental temperatures. The 96 hr LC50 values in ppm of Cu were 0.060 at 32.5 °C; 0.066 at 24 °C; 0.09 at 27.3 °C and 0.39 at 20.3 °C. In higher copper concentrations some behavioural changes such as secretion of mucus, discharge of eggs and embryos were noted. The results indicate that toxicity to copper increases with temperature increase. |
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Keywords: | snail copper toxicity temperature dependence testing |
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